Re: Query about IPI as NMI (pseudo-NMI) support patches

Marc Zyngier
2023-01-02T17:12:15Z

Hi Mukesh,

On Mon, 02 Jan 2023 16:44:59 +0000,
Mukesh Ojha <quic_mojha@quicinc.com> wrote:
>
> Hi Marc,
>
> I was looking similar support mentioned in below patch series.
>
> https://lore.kernel.org/lkml/CAFA6WYO0+LQ=mB1spCstt0cNZ0G+sZu_+Wrv6BKSeXqF5SRq4A@mail.gmail.com/#t
>
> Wanted to check if there is chance of these patches to land in
> mainline ?

I certainly have no intention to merge it as is, specially as there is
no good usage model for it other than "but think of debug!".

We have exactly *one* SGI left. If we are going to lose it over such a
feature, I'd want a description of how we are going to share it
between potential users, and how we claw some currently used SGIs
back.

Until then, this is a proof of concept, and not much else.

Thanks,

M.

--
Without deviation from the norm, progress is not possible.